Question

I REALLY NEED HELP PLEASE
What ultimately caused the United States to enter the war against Germany?

Answer 1

Answer:

One of the reason the U.S. joined the war after pledging neutrality is because Germany allegedly sunk U.S. merchant ships around the British isles.

Answer 2

Germany’s violation of its pledge to suspend unrestricted submarine warfare in the North Atlantic and the Mediterranean, as well as its attempts to entice Mexico into an alliance against the United States.